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Old 2006-03-13, 16:04   Link #1
Champloo
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Join Date: Mar 2006
Question uTorrent help

On uTorrent, it shows two numbers on peers and seeds. The number and another number in parentheses. What does the number in parentheses mean?
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Old 2006-03-13, 16:12   Link #2
Champloo
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Oh and how do you super seed? Thx.
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Old 2006-03-13, 16:26   Link #3
[darkfire]
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Quote:
Originally Posted by Champloo
On uTorrent, it shows two numbers on peers and seeds. The number and another number in parentheses. What does the number in parentheses mean?
The total number of seeds.

I advise you not to super seed unless your the one releasing the torrent. Super seeding is bad if there are more than 2 seeders
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Old 2006-03-14, 01:41   Link #4
Ledgem
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Just to elaborate a bit:

Quote:
Originally Posted by [darkfire]
The total number of seeds.
In other words, the first number is how many you're actually connected to; the number in parentheses is how many your client sees in total (it doesn't necessarily reflect how many are on the torrent in total).

Quote:
I advise you not to super seed unless your the one releasing the torrent. Super seeding is bad if there are more than 2 seeders
Super seeding basically puts the client into a mode where it sends based on what pieces of the file are rarest. This is useful on newly formed torrents, where the piece distribution is very poor; this method helps to get all of the pieces out the fastest. However, on torrents where the pieces are all in relatively good distribution, this just makes for a less effective seeder. It's also worth noting that utorrent isn't the only client capable of "super seeding" - I believe it's standard on almost all clients now, and the general behavior is the same on all of them.
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Old 2006-03-14, 09:36   Link #5
DWKnight
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Quote:
I believe it's standard on almost all clients now, and the general behavior is the same on all of them.
It's not standard, and there are two major algorithms.

BitTornado's Algorithm. Arguably the most efficent. It forces out pieces in a "Rarest pieces first, equally rare pieces get randomly distributed" method. I've personally super-seeded with BitTornado and ended up with full distribution with as little as 105% uploaded. The algorithm dictates that a peer doesn't get additional pieces until the pieces sent to it already have been seen on other peers. Used by BitTornado and ABC.

Azureus' Algorithm. Sometimes it's efficent, more often it's not. This algorithm sends pieces out starting at piece 0, uploading pieces sequentially to the swarm, then resets to normal seeding once it has uploaded all the pieces. This algorithm can take over 200% uploaded to generate new seeds (where standard seeding typically gets new seeds in the 130-170% range). Peers can end up getting additional pieces before the pieces they've recieved already have been distributed. uTorrent switcehd to this algorithm recently and was previously using the BitTornado algorithm. Azureus uses this algorithm.

Not all clients implement super-seeding, and not all super-seeding is created equal.
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